What is the cheapest airline that flies from Philadelphia to Great Falls?

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Philadelphia to Great Falls

When did momondo last update prices for flights from Philadelphia Airport to Great Falls Airport?

Prices for flights from Philadelphia Airport to Great Falls Airport are updated daily.

How many operators does momondo search for flights from Philadelphia Airport to Great Falls Airport?

As of September 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Great Falls Airport.

How old do you have to be to fly from Philadelphia Airport to Great Falls Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Great Falls Airport.

What documentation or ID do you need to fly to Great Falls Airport?

The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$174 Cheap Flights from Philadelphia to Great Falls in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Great Falls

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 1:49 pmPHL Philadelphia-GTF Great Falls

8h 04m1 stop Denver Intl

6:30 am - 3:46 pmGTF Great Falls-PHL Philadelphia

7h 16m1 stop Denver Intl

$368United Airlines

Fri, Nov 13 - Sat, Nov 14

7:45 am - 1:49 pmPHL Philadelphia-GTF Great Falls

8h 04m1 stop Denver Intl

2:45 pm - 11:39 pmGTF Great Falls-PHL Philadelphia

6h 54m1 stop Denver Intl

$368United Airlines

Fri, Oct 30 - Sat, Nov 7

1:16 pm - 9:38 pmPHL Philadelphia-GTF Great Falls

10h 22m2 stops Chicago O'Hare Intl Denver Intl

2:45 pm - 11:39 pmGTF Great Falls-PHL Philadelphia

6h 54m1 stop Denver Intl

$374United Airlines

Fri, Oct 30 - Sat, Nov 7

5:20 am - 12:38 pmPHL Philadelphia-GTF Great Falls

9h 18m2 stops Atlanta Hartsfield-Jackson Salt Lake City

5:40 am - 6:18 pmGTF Great Falls-PHL Philadelphia

10h 38m2 stops Salt Lake City Minneapolis St Paul

$379Delta

Fri, Oct 30 - Sat, Nov 7

8:00 am - 1:41 pmPHL Philadelphia-GTF Great Falls

7h 41m1 stop Denver Intl

2:37 pm - 11:20 pmGTF Great Falls-PHL Philadelphia

6h 43m1 stop Denver Intl

$402United Airlines

Tue, Sep 29 - Mon, Oct 5

7:20 am - 12:35 pmPHL Philadelphia-GTF Great Falls

7h 15m1 stop Salt Lake City

6:27 pm - 6:05 amGTF Great Falls-PHL Philadelphia

9h 38m1 stop Salt Lake City

$403Delta

Sun, Sep 27 - Fri, Oct 9

7:20 am - 12:35 pmPHL Philadelphia-GTF Great Falls

7h 15m1 stop Salt Lake City

6:21 pm - 6:05 amGTF Great Falls-PHL Philadelphia

9h 44m1 stop Salt Lake City

$403Delta

Mon, Sep 28 - Mon, Oct 5

6:59 pm - 4:39 pmPHL Philadelphia-GTF Great Falls

23h 40m1 stop Seattle/Tacoma Intl

5:15 pm - 5:41 amGTF Great Falls-PHL Philadelphia

10h 26m1 stop Seattle/Tacoma Intl

$413Alaska Airlines

Tue, Sep 29 - Mon, Oct 5

7:00 am - 4:39 pmPHL Philadelphia-GTF Great Falls

11h 39m1 stop Seattle/Tacoma Intl

5:15 pm - 5:41 amGTF Great Falls-PHL Philadelphia

10h 26m1 stop Seattle/Tacoma Intl

$500Alaska Airlines

Wed, Sep 30 - Tue, Oct 6

6:59 pm - 4:39 pmPHL Philadelphia-GTF Great Falls

23h 40m1 stop Seattle/Tacoma Intl

5:15 pm - 5:41 amGTF Great Falls-PHL Philadelphia

10h 26m1 stop Seattle/Tacoma Intl

$500Alaska Airlines

Tue, Sep 29 - Tue, Oct 6

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Delta flights from Philadelphia to Great Falls

Our best Delta deals on Philadelphia to Great Falls flight tickets

Delta

Oct 30

PHL5:20 amPhiladelphia

9h 18m

2 stops

GTF12:38 pmGreat Falls

Nov 7

GTF5:40 amGreat Falls

10h 38m

2 stops

PHL6:18 pmPhiladelphia

$379

Delta

Sep 27

PHL7:20 amPhiladelphia

7h 15m

1 stop

GTF12:35 pmGreat Falls

Oct 9

GTF6:27 pmGreat Falls

9h 38m

1 stop

PHL6:05 amPhiladelphia

$403

Delta

Sep 27

PHL7:20 amPhiladelphia

7h 15m

1 stop

GTF12:35 pmGreat Falls

Oct 5

GTF6:21 pmGreat Falls

13h 08m

2 stops

PHL9:29 amPhiladelphia

$409

United Airlines flights from Philadelphia to Great Falls

Our best United Airlines deals on Philadelphia to Great Falls flight tickets

United Airlines

Oct 30

PHL7:45 amPhiladelphia

8h 04m

1 stop

GTF1:49 pmGreat Falls

Nov 7

GTF2:45 pmGreat Falls

6h 54m

1 stop

PHL11:39 pmPhiladelphia

$368

United Airlines

Oct 30

PHL1:16 pmPhiladelphia

10h 22m

2 stops

GTF9:38 pmGreat Falls

Nov 7

GTF2:45 pmGreat Falls

6h 54m

1 stop

PHL11:39 pmPhiladelphia

$374

United Airlines

Sep 29

PHL8:00 amPhiladelphia

7h 41m

1 stop

GTF1:41 pmGreat Falls

Oct 5

GTF2:37 pmGreat Falls

6h 43m

1 stop

PHL11:20 pmPhiladelphia

$402

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Fri 11/13

7:45 am-1:49 pm

1 stop8h 04m

Great Falls

Sat 11/14

6:30 am-3:46 pm

1 stop7h 16m

$368

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Fri 10/30

7:45 am-1:49 pm

1 stop8h 04m

Great Falls

Sat 11/7

2:45 pm-11:39 pm

1 stop6h 54m

$368

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Fri 10/30

1:16 pm-9:38 pm

2 stops10h 22m

Great Falls

Sat 11/7

2:45 pm-11:39 pm

1 stop6h 54m

$374

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Fri 10/30

5:20 am-12:38 pm

2 stops9h 18m

Great Falls

Sat 11/7

5:40 am-6:18 pm

2 stops10h 38m

$379

Quickest round-trip

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Tue 9/29

8:00 am-1:41 pm

1 stop7h 41m

Great Falls

Mon 10/5

2:37 pm-11:20 pm

1 stop6h 43m

$402

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Sun 9/27

7:20 am-12:35 pm

1 stop7h 15m

Great Falls

Fri 10/9

6:27 pm-6:05 am

1 stop9h 38m

$403

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Mon 9/28

7:20 am-12:35 pm

1 stop7h 15m

Great Falls

Mon 10/5

6:21 pm-6:05 am

1 stop9h 44m

$403

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Tue 9/29

6:59 pm-4:39 pm

1 stop23h 40m

Great Falls

Mon 10/5

5:15 pm-5:41 am

1 stop10h 26m

$413

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Wed 9/30

7:00 am-4:39 pm

1 stop11h 39m

Great Falls

Tue 10/6

5:15 pm-5:41 am

1 stop10h 26m

$500

PhiladelphiaGreat Falls

PHL Philadelphia - GTF Great Falls

PHLGTF

Philadelphia

Tue 9/29

6:59 pm-4:39 pm

1 stop23h 40m

Great Falls

Tue 10/6

5:15 pm-5:41 am

1 stop10h 26m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Great Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Philadelphia and Great Falls?

Prices are currently low for flights on this route.

Typical prices usually range from $468 to $748.
The lowest price recently found on this route was $368.

What is the cheapest month to fly to Great Falls?

The month of April is another great option to travel to Great Falls, with average flight prices from Philadelphia averaging around $372.

Can stopping save me money on Philadelphia to Great Falls flights?

You could potentially save up to 7% on your flight if you consider stops on a Philadelphia to Great Falls flight.

When to book flights from Philadelphia to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Great Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Great Falls (PHL to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Great Falls

Best Price Found	$174
Fastest flight time	7h 15m
Direct flights	None

The best one-way flight to Great Falls from Philadelphia in the past 72 hours is $174. The best round-trip flight deal from Philadelphia to Great Falls found on momondo in the last 72 hours is $368.

The fastest flight from Philadelphia to Great Falls takes 7h 15m

There are no direct flights from Philadelphia to Great Falls. There are no popular flight routes from Philadelphia to Great Falls.

Search flight deals

Frequently asked questions about flying from Philadelphia to Great Falls

How far is Philadelphia to Great Falls by plane?
A flight from Philadelphia to Great Falls will travel around 1858.6 mi. Typically, this will take 7h 15m by plane in normal conditions.
When did momondo last update prices for flights from Philadelphia Airport to Great Falls Airport?
Prices for flights from Philadelphia Airport to Great Falls Airport are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Great Falls Airport?
As of September 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Great Falls Airport.
How old do you have to be to fly from Philadelphia Airport to Great Falls Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Great Falls Airport.
What documentation or ID do you need to fly to Great Falls Airport?
The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Philadelphia to Great Falls?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Great Falls is United Airlines, representing 53% of all bookings. The subsequent popular airline is Delta at 47%.

Best airlines flying from Philadelphia to Great Falls

Compare and see reviews for airlines that fly from Philadelphia to Great Falls with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $263	Free Cancellation	Rating 7.8 8,557 reviews		Search Delta flights
United Airlines	PriceFrom $466	Free Cancellation	Rating 7.4 10,201 reviews		Search United Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Great Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from Philadelphia.

Can I find flights from Philadelphia to Great Falls with flexible booking policies on momondo?

Flights from Philadelphia to Great Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Great Falls?

Once you have performed a search for Philadelphia to Great Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Great Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Philadelphia to Great Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.